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package Mypackage;
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public class cal1 {
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public static double add (double a,double b) {//<2F>ӷ<EFBFBD>
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return a+b;
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}
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public static double sub (double a,double b) {//<2F><><EFBFBD><EFBFBD>
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return a-b;
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}
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}
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